Composite shingle



H. P. TAYLOR COIPOSITB SHINGLE Filed July 13 Nov. 28, 1933.

Patented Nov. 28, 1933 comosrrn -smNGLi-z A Hubert Porter Taylor, UnionCity, Tenn., 'assignor of one-half to Robert H. Taylor, Martin, Tenn.

Application July 13, 1932. Serial No. 622,357

2 Cm (Cl. 108-8) The invention relates to. a new and improved shingleembodying a concrete slab upon a weather-proof backing sheet, and theprincipal object of said invention is to provide a perfect bond betweensaid slab and sheet which will prevent separation of the sheet from theslab even if the shingles be laid upon spaced roofing lath instead ofupon tight sheathing and will retain all parts of the slab upon thesheet if said slab should -become cracked or even more or lessshattered, and to provide for cementing of each shingle to underlyingshingles under the influence of sun heat after the roong is laid. Thus,the component parts of the individual shingles are tenaciously joinedtogether even if some of the slabs be cracked or moreseverely injured,and the various shingles become tightly cemented to each other, formingvirtually a single-sheet roof which will be flreproof, weatherproof evenagainst driving rains, will insulate against heat, sound andelectricity, and will be practically everlasting.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, description being accomplishedby reference to the accompanying drawing.

Fig. 1 is a top plan view of a composite shingle constructed inaccordance with the invention.

Figs. 2 and 3 are longitudinal and transverse sectional views on lines 22 and 3-3 respectively of Fig. 1.

Fig. 4 is an enlarged fragmentary transverse sectional view similar to aportion of Fig. 3.

In the drawing above briefly described, the numeral 5 denotes a backingsheet preferably formed from two or. more layers of roofing felt,building felt, deadening felt, or the like, suitably weatherproofed (forinstance by saturation with va bituminous compound) and tightlyvcemented and pressed together. The entire lower side of this sheet 5 isprovided with'a layer 6 of bituminous or other mastic cement whichpossesses a melting point adapting it to soften suillciently under theiniiuence of sun heat, to allow .any shingle to adhere to the underlyingshingles. A

myriad of mineral fragments 7 which may be the size of peas, arepartially embedded in the upper side of the backing sheet 5 and aresecured thereto, saidl fragments projecting about half into and halfabove said sheet.

A concrete slab 8 is poured, rattled, rammed, pressed or otherwiseformed on the fragments 7 and the sheet 5 so that the projectingportions between the sheet 5 and the slab 8. This slab is preferablysomewhat larger than the sheet 5 and is provided with a continuousmarginal rib 9 which surrounds the edge of said sheet, providing afurther bond between sheet and slab, and protecting the edge of theformer. The rib 9 does not extend downwardly any further than thev lowerside of the mastic cement layer 6 and need not extend entirely to thelower side of said layer. v

The entire shingle is preferably tapered as shown in Fig. 2, and whilesaid shingle may be constructed in various dimensions, it may well beeighteen inches long, eight inches wide, ilveeighths of an inch thick atits lower end, and three-eighths of an inch thick at its upper end. Thebacking sheet 5 may obviously be formed of any desired weatherproof orweatherproofed material to prevent leakage even should the slab 8 becomecracked or even shattered. The mineral fragments 'l form such atenacious bond between this backing sheet 5 and the concrete slab 8,that even if the latter should become badly broken, all parts of it willstill remain in proper position upon said backing sheet. Moreover, thistenacious bond between slab and backing sheet, prevents the latter fromseparating from the slab even if the shingles be laidupon widely spacedroofing -lath instead of upon tight sheathing. For greater strength andto minimize danger of breakage, particularly when the shingles are usedon roofing lath, the slab 8 may be provided with any desired reinforcingmeans, a plurality of wires 10, preferably of steel being shown for thisPurpose- A roof constructed from the improved shingles,

becomes virtually a one-piece sheet, for the component parts of eachshingle are tenaciously bonded together, and the shingles become tightlycemented to each other by the cement 6, said cement becoming suiicientlyviscous to function in this manner, due to the heat of the sun upon isexposed to the' weather may be of any desired texture, or be given anydesired siu'face treatment, be smooth, sand or brush finished and carrya complete design or aportion of one, either depressed into th surface,ush with it or in relief.

I claimz- 1. A composite shingle comprising a concrete slab, awater-proof sheet secured against the lower side of said slab, and alayer of mastic cement upon the lower side of said sheet, said masticcement having a melting point adapting' it to softeny suiilciently undersun heat to adhere to the concrete slabs .of underlying shingles, saidsheet being of slightly less area than said slab, the latter beingprovided with a marginal rib surrounding the edge oi said sheet, saidrib extending downwardly no further than the lower side of said masticcement layer.

2.I A composite shingle comprising -a waterproof sheet, a myriad ofmineral fragments embedded partially in the upper side or said sheet andsecured thereto, portions of said fragments projecting upwardly fromsaid sheet, a concrete slab upon said sheet, the projecting portions ofsaid mineral fragments being embedded in the concrete of said slab, anda layer of mastic cement on the lower side of said sheet having amelting point adapting it to soften sufficiently under sun heat toadhere to the concreteslabs of underlying shingles, whereby thecomponent parts of each shingle of a roof will be' tenaciously bondedtogether and all of the shingles will become cemented together, saidsheet being of slightly less area than said slab, the latter beingprovided with a marginal rib surrounding the edge of said sheet, saidrib extending downwardly no further y than the lower side of said-masticcement layer.

` HUBERT PORTER TAYLOR.

